Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of methylene blue active substances by spectrophotometry

Open-File Report ◽

10.3133/ofr95189 ◽

1995 ◽

Author(s):

Mark R. Burkhardt ◽

Pete J. Cinotto ◽

Galen W. Frahm ◽

Mark T. Woodworth ◽

Jeffrey W. Pritt

Keyword(s):

Water Quality ◽

Methylene Blue ◽

Geological Survey ◽

Methods Of Analysis ◽

Laboratory Determination ◽

Active Substances ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of triazine and other nitrogen-containing compounds by gas chromatography with nitrogen phosphorus detectors

Open-File Report ◽

10.3133/ofr9437 ◽

1994 ◽

Author(s):

D.J. Markovchick ◽

J.A. Lewis ◽

R.W. Brenton ◽

J.L. Iverson ◽

H.L. Wharry

Keyword(s):

Water Quality ◽

Gas Chromatography ◽

Geological Survey ◽

Methods Of Analysis ◽

Laboratory Determination ◽

Nitrogen Containing Compounds ◽

Nitrogen Phosphorus ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of the total phosphorus by a Kjeldahl digestion method and an automated colorimetric finish that includes dialysis

Open-File Report ◽

10.3133/ofr92146 ◽

1992 ◽

Author(s):

Charles J. Patton ◽

Earl P. Truitt

Keyword(s):

Water Quality ◽

Total Phosphorus ◽

Geological Survey ◽

Digestion Method ◽

Methods Of Analysis ◽

Laboratory Determination ◽

Kjeldahl Digestion ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of antimony by automated-hydride atomic absorption spectrophotometry

Open-File Report ◽

10.3133/ofr93664 ◽

1994 ◽

Author(s):

G.E. Brown ◽

B.J. McLain

Keyword(s):

Water Quality ◽

Atomic Absorption ◽

Atomic Absorption Spectrophotometry ◽

Geological Survey ◽

Absorption Spectrophotometry ◽

Methods Of Analysis ◽

Laboratory Determination ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of inorganic and organic constituents in water and fluvial sediments

Open-File Report ◽

10.3133/ofr93125 ◽

1993 ◽

Keyword(s):

Water Quality ◽

Geological Survey ◽

Fluvial Sediments ◽

Organic Constituents ◽

Methods Of Analysis ◽

Laboratory Determination ◽

The U.S ◽

National Water ◽

Inorganic And Organic

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of organophosphate pesticides in filtered water by gas chromatography with flame photometric detection

10.3133/wri024071 ◽

2002 ◽

Keyword(s):

Water Quality ◽

Gas Chromatography ◽

Geological Survey ◽

Organophosphate Pesticides ◽

Photometric Detection ◽

Laboratory Determination ◽

Flame Photometric Detection ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of dissolved arsenic, boron, lithium, selenium, strontium, thallium, and vanadium using inductively coupled plasma-mass spectrometry

Open-File Report ◽

10.3133/ofr9993 ◽

1999 ◽

Author(s):

John R. Garbarino

Keyword(s):

Mass Spectrometry ◽

Water Quality ◽

Inductively Coupled Plasma ◽

Geological Survey ◽

Inductively Coupled ◽

Laboratory Determination ◽

Plasma Mass Spectrometry ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of dissolved organic carbon by UV-promoted persulfate oxidation and infrared spectrometry

Open-File Report ◽

10.3133/ofr92480 ◽

1993 ◽

Author(s):

R.W. Brenton ◽

T.L. Arnett

Keyword(s):

Water Quality ◽

Organic Carbon ◽

Dissolved Organic Carbon ◽

Geological Survey ◽

Infrared Spectrometry ◽

Persulfate Oxidation ◽

Laboratory Determination ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of ammonium plus organic nitrogen by a Kjeldahl digestion method and an automated photometric finish that includes digest cleanup by gas diffusion

Open-File Report ◽

10.3133/ofr00170 ◽

2000 ◽

Author(s):

Charles J. Patton ◽

Earl P. Truitt

Keyword(s):

Water Quality ◽

Organic Nitrogen ◽

Gas Diffusion ◽

Geological Survey ◽

Digestion Method ◽

Laboratory Determination ◽

Kjeldahl Digestion ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of nonpurgeable suspended organic carbon by wet-chemical oxidation and infrared spectrometry

Open-File Report ◽

10.3133/ofr97380 ◽

1997 ◽

Author(s):

Mark R. Burkhardt ◽

James A. Kammer ◽

Virendra K. Jha ◽

Peggy G. O'Mara-Lopez ◽

Mark T. Woodworth

Keyword(s):

Water Quality ◽

Organic Carbon ◽

Chemical Oxidation ◽

Geological Survey ◽

Infrared Spectrometry ◽

Laboratory Determination ◽

Wet Chemical ◽

The U.S ◽

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; a method supplement for the determination of Fipronil and degradates in water by gas chromatography/mass spectrometry

Open-File Report ◽

10.3133/ofr02462 ◽

2002 ◽

Author(s):

James F. Madsen ◽

Mark W. Sandstrom ◽

Steven D. Zaugg

Keyword(s):

Mass Spectrometry ◽

Water Quality ◽

Gas Chromatography ◽

Geological Survey ◽

Gas Chromatography Mass Spectrometry ◽

Chromatography Mass Spectrometry ◽

Methods Of Analysis ◽

The U.S ◽

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